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libpayload: Remove workaround for bitfield management in EHCI driver 

We don't use bitfields anymore.

Change-Id: I25ceec2024f659612871bcfe5f98df3a10789055
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/595
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
This commit is contained in:
Patrick Georgi 2012-01-31 14:48:05 +01:00 committed by Patrick Georgi
parent 2fd524297e
commit 7627f7f22d
1 changed files with 11 additions and 17 deletions
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28
payloads/libpayload/drivers/usb/ehci_rh.c
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@ -53,31 +53,28 @@ ehci_rh_destroy (usbdev_t *dev)
static void
ehci_rh_hand_over_port (usbdev_t *dev, int port)
{
volatile portsc_t *p = &(RH_INST(dev)->ports[port]);
debug("giving up port %x, it's USB1\n", port+1);
/* Lowspeed device. Hand over to companion */
*p |= P_PORT_OWNER;
do {} while (!(*p & P_CONN_STATUS_CHANGE));
RH_INST(dev)->ports[port] |= P_PORT_OWNER;
do {} while (!(RH_INST(dev)->ports[port] & P_CONN_STATUS_CHANGE));
/* RW/C register, so clear it by writing 1 */
*p |= P_CONN_STATUS_CHANGE;
RH_INST(dev)->ports[port] |= P_CONN_STATUS_CHANGE;
return;
}
static void
ehci_rh_scanport (usbdev_t *dev, int port)
{
volatile portsc_t *p = &(RH_INST(dev)->ports[port]);
if (RH_INST(dev)->devices[port]!=-1) {
debug("Unregister device at port %x\n", port+1);
usb_detach_device(dev->controller, RH_INST(dev)->devices[port]);
RH_INST(dev)->devices[port]=-1;
}
/* device connected, handle */
if (*p & P_CURR_CONN_STATUS) {
if (RH_INST(dev)->ports[port] & P_CURR_CONN_STATUS) {
mdelay(100);
if ((*p & P_LINE_STATUS) == P_LINE_STATUS_LOWSPEED) {
if ((RH_INST(dev)->ports[port] & P_LINE_STATUS) == P_LINE_STATUS_LOWSPEED) {
ehci_rh_hand_over_port(dev, port);
return;
}
@ -85,17 +82,17 @@ ehci_rh_scanport (usbdev_t *dev, int port)
/* Deassert enable, assert reset. These must change
* atomically.
*/
*p = (*p & ~P_PORT_ENABLE) | P_PORT_RESET;
RH_INST(dev)->ports[port] = (RH_INST(dev)->ports[port] & ~P_PORT_ENABLE) | P_PORT_RESET;
/* Wait a bit while reset is active. */
mdelay(50);
/* Deassert reset. */
*p &= ~P_PORT_RESET;
RH_INST(dev)->ports[port] &= ~P_PORT_RESET;
/* Wait for flag change to finish. The controller might take a while */
while (*p & P_PORT_RESET) ;
if (!(*p & P_PORT_ENABLE)) {
while (RH_INST(dev)->ports[port] & P_PORT_RESET) ;
if (!(RH_INST(dev)->ports[port] & P_PORT_ENABLE)) {
ehci_rh_hand_over_port(dev, port);
return;
}
@ -103,7 +100,7 @@ ehci_rh_scanport (usbdev_t *dev, int port)
RH_INST(dev)->devices[port] = usb_attach_device(dev->controller, dev->address, port, 2);
}
/* RW/C register, so clear it by writing 1 */
*p |= P_CONN_STATUS_CHANGE;
RH_INST(dev)->ports[port] |= P_CONN_STATUS_CHANGE;
}
static int
@ -130,8 +127,6 @@ void
ehci_rh_init (usbdev_t *dev)
{
int i;
volatile portsc_t *p;
dev->destroy = ehci_rh_destroy;
dev->poll = ehci_rh_poll;
@ -144,9 +139,8 @@ ehci_rh_init (usbdev_t *dev)
RH_INST(dev)->devices = malloc(RH_INST(dev)->n_ports * sizeof(int));
for (i=0; i < RH_INST(dev)->n_ports; i++) {
p = &(RH_INST(dev)->ports[i]);
RH_INST(dev)->devices[i] = -1;
*p |= P_PP;
RH_INST(dev)->ports[i] |= P_PP;
ehci_rh_scanport(dev, i);
}